31results about How to "Simple installation and wiring" patented technology

The invention discloses a follow-up projection type advertising device, which comprises an induction area ring, an annular projection curtain and a projector, the induction area ring is distributed around a displayed object, and a plurality of induction sensors used for checking the position of a human body on the induction area ring are arranged in the induction area ring. The projector and the sound box equipment are integrally installed on a projection table, the projection table is horizontally arranged in the center of the interior of an annular projection curtain, and the annular projection curtain is formed by horizontally closing and splicing a plurality of vertically-arranged arc-shaped curtain plates. A rotating mechanism used for driving the projection table to rotate with the center of the annular projection curtain as the circle center is arranged between the projection table and a hanging assembly, and a lead screw driving mechanism used for driving the hanging assembly to horizontally and transversely move is installed at the top of the hanging assembly. According to the invention, follow-up projection advertisement information display can be annularly carried out around consumers according to activity paths of the consumers for visiting products.

The invention discloses an ultrasonic image positioning detecting device of a transformer substation. The device comprises an image displaying mechanism and an ultrasonic detecting mechanism which are connected through a coaxial cable. The ultrasonic detecting mechanism comprises an ultrasonic sensor and a signal preprocessing circuit which are arranged on a quadric surface structure in a matrix mode. The image displaying mechanism comprises a displayer, a processor and a data memory connected with the processor. The processor is provided with a sound intensity mapping processing module which is used for driving and displaying a sound intensity map to quickly judge an ultrasonic source. According to the position of equipment to be detected in the transformer substation, a cubic data model of a quadric surface is built. A three-dimensional coordination system is built on the basis of the model, and preprocessing and display processing of relative ultrasonic signals are carried out. Ultrasonic imaging is achieved by means of pseudo image information, and fast fault positioning is achieved by means of color ring band analysis. The device effectively improves work efficiency of maintenance of the transformer substation, is simple, convenient and practical, and has good popularization and application value.

The invention discloses a low-temperature plasma discharge power supply device. The power supply device comprises a power supply casing. A control unit, a switching power supply, an inverter, a dry type transformer and a power module are arranged in the power supply casing. The front side wall of the power supply casing is provided with an output voltage indicator, a running state indicator, a power switch capable of starting and shutting down discharge of the switching power supply, a manual adjustment knob, a front end heat dissipation hole and an output power indicator. The dry type transformer is adopted, and the device space is saved. A cooling fan and an internal cooling fin and the like are utilized, so that a power device can be effectively cooled, and the influence of temperature rise on the device is reduced. High voltage output terminals are isolated through a voltage-resistant insulting material, and a socket is in the high voltage protection wiring form, can be connected with a discharge module quickly and is easy to install, debug and maintain.

The invention discloses a WiFi-based indoor positioning and verification system, which includes: at least one RFID reader, which is scattered in the positioning area; at least three wireless APs, which are scattered in the positioning area; mobile devices, connected to at least three The wireless AP machine obtains the wireless signal strength; the positioning server collects the wireless signal strength and uses a differential algorithm to locate the mobile device; among them, the mobile device is equipped with an RFID electronic tag; when the mobile device enters the preset signal range of the positioning area, the RFID The electronic tag sends out the RFID signal; at least one RFID reader receives the RFID signal to confirm that the mobile device is within the preset signal range. The mobile device uses WiFi positioning. When the mobile device enters the preset signal range, the RFID electronic tag is activated to send a radio frequency signal; the RFID reader obtains the radio frequency signal and confirms that the mobile device is within the preset signal range, indicating that the mobile device is within the preset signal range. There are no false reports about the device.

The invention discloses a design method of an intelligent power supply electronic converter of a general-type railway signal lamp; a converter is connected in series between a current relay in a central control room and a railway signal lamp; an electro magnetic compatibility with three-stage series surge protection function, main and auxiliary power supplies, an active power factor correction circuit, an off-line DC-DC, a signal processing circuit of which the periphery is connected with all sorts of detection circuits and a state output control circuit are connected to form the intelligent power supply electronic converter. The design method adopts surge protection, a switch power supply, a microcontroller, signal collection and processing and other technologies, and has the advantages that installation and line connection are simple, without the limitation of installation distance; the power voltage provided for the railway signal lamp is constant, the total transfer efficiency is greater than or equal to 80%; the design method specially provides a new-type LED railway signal lamp with power and the old-type railway signal lamp can be directly used by internal installation without change of the optical system of the old-type railway signal lamp.

Provided is a motor automatic control device. A contactor and a main contact of a thermal relay are both connected in a motor power supply loop. A normally opened contact of a first intermediate relay, a press button TA, the contactor, a normally closed contact of a second intermediate relay and the thermal relay are sequentially connected in the 380V of power supply loop in series. A second normally opened contact of the contactor, the thermal relay and a pressurized indicator lamp are sequentially connected in the 380V of power supply loop in series. A second normally closed contact of the contactor and a shutdown indicator lamp are connected in the 380V of power supply loop in series. A power-loss indicator lamp is connected in the 380V of power supply loop. A contact P of an electric contact air pressure gauge is connected with +24V, and a contact P1 is sequentially connected with a first normally closed contact of the contactor and the first intermediate relay in series and then connected with -24V. A contact P2 of the electric contact air pressure gauge is sequentially connected with a first normally closed contact of the contactor and the second intermediate relay in series and then connected with -24V. The motor automatic control device has the advantages that over-temperature automatic shutdown is achieved, the contacts of the electric contact air pressure gauge are instantaneous electrified, and the service life is long.

The invention provides a comprehensive exploratory well logging system and method. The system comprises a Fourier transform infrared spectrometer, an upper computer, a lower computer, a wireless transmission system and sensors and instruments for detecting conventional pressure, torque, drilling fluid density, conductivity and other exploratory well platform parameters. Gas logging is carried out at an exploratory well mouth through the Fourier transform infrared spectroscopy, the lower computer collects and analyzes spectrums and also monitors the pressure, torque, drilling fluid density, conductivity and other parameters of the drilling platform, and a result is sent to the upper computer, 50 meters or more away from the well mouth, in a logging room through the wireless data transmission system. A comprehensive logging instrument is simple in circuit, high in analysis speed and convenient to maintain.

The invention relates to a modularized three-phase four-wire active power filter. The active power filter adopts profiles to set up the frame structure of the complete machine or adopts standard distribution cabinet type. The active power filter is provided with the following five main functional modules based on functions: a circuit breaker module, a filter module, a converter module, a reactor module and a harmonic analyzer module. Different modules achieve the aims of electrical connection and data communication through corresponding hardware interfaces. The modules are respectively installed in boxes formed by the profiles according to function difference. The functions of the modules are relatively independent. Each module can be singly changed, thus being convenient for upgrading and capacity expansion of the functions and breakdown maintenance and improving the practicability and flexibility of the active power filter. The active power filter has strong anti-jamming capability and high filtering performance index, is stable and reliable and is convenient and simple in installation and wiring.

The present invention proposes a wiring structure for installation of axle temperature alarm and anti-skid device system of 2A-A2 axle locomotive, including front bogie, rear bogie, original axle temperature alarm system, and original anti-skid device system. The original axis temperature alarm system part includes 1 axis alarm host, 1 axis alarm slave, 22 temperature sensors, and 6 relay junction boxes. The 6 relay junction boxes are shared by the under-vehicle wiring part of the original axle temperature alarm system and the original anti-skid device system, and 3 are respectively installed on the front bogie and the rear bogie. The technical solution of the invention not only simplifies the installation and wiring of electrical equipment, makes the wiring more tidy and beautiful, the installation and wiring method is simple to operate, and has a compact structure, but also solves the difficulty of removing wires during repair and maintenance of electrical equipment.

The invention discloses a power supply control system and method, printing equipment and a power supply control method thereof. The printing equipment comprises a first power supply circuit, a power module, a power management circuit, a main control circuit and a printing module. The first power supply circuit is connected with an external power supply module and supplies power to electric parts of the printing equipment; when the printing equipment is in a printing working mode, the power supply module serves as a second power supply circuit and supplies power to the power supply management circuit together with the first power supply circuit; and when the printing equipment is in a non-printing working mode, the power supply management circuit controls the first power supply circuit to charge the power supply module. According to the invention, the requirement of electric equipment such as a printer for high-peak current in a set working state can be met through a convenient interface, and a power adapter does not need to be configured. The cost of the whole machine is reduced, authentication of an adapter is not needed, the authentication cost is reduced, and installation and wiring are simplified.

The invention discloses a transformer station applied smart illumination control system and control method, which relate to the technical field of electric power equipment control. The illumination control system comprises a first infrared sensor, a second infrared sensor, an illumination starting switch, a wire connecting row, a controller, a breaker and a switch power supply. The first infrared sensor and the second infrared sensor are mounted at the entrance and the exit for the working staff of the transformer station successively from the outside to the inside, and the two sensors are connected to the controller through the wire connecting row to sense the entering and the leaving of the working staff. The buttons of the illumination starting switch are connected with the signal input end of the controller through the wire connecting row so as to start the entire system. The controller, based on the signals from the infrared sensors, decides the connection and the disconnection of the breaker. The system and the method are smartly controlled with the consequences that power energy can be significantly saved and the service lifetime of an illumination apparatus is increased.

Provided is a multi-machine frequency converter, which may comprise: a master control unit, and N1 execution units coupled in series by means of a communications port, said N1 execution unit sharing a common DC bus; the first communications port of the master control unit is connected to the second communications port of the first of the N1 execution units; the N1 execution units comprise N11 rectifier units and N12 inverter units; N11 is a positive integer, and N12 is a positive integer greater than 1; said first execution unit is an execution unit located at an edge position of said N1 execution units connected in series by means of a communications port. The technical solution provided by the embodiments of the present invention is conducive to reducing the complexity of frequency converter wiring configurations in the context of multiple machines, improving the stability and reliability in multi-machine operation of frequency converters.

The invention discloses a single-phase boosting device provided with an intelligent control compound switch. The single-phase boosting device comprises the intelligent control compound switch, a firing line, a zero line and a capacitor. The single-phase boosting device is characterized in that the intelligent control compound switch is used for carrying out analysis and computation according to the collected single-phase alternating-current voltage parameters, and sending a control instruction to a switch control module simultaneously according to the result of the analysis and computation soas to switch a capacitor with corresponding volume so that the purpose of realizing single-phase voltage regulation is achieved; when the acquired voltage is lower than the qualified voltage of powersupply, the intelligent control compound switch controls addition of capacitors; when the acquired voltage is within the qualified voltage range of power supply, the intelligent control compound switch maintains the capacitor switching status; when the acquired voltage is higher than the qualified voltage of power supply, the intelligent control compound switch controls reduction of capacitors. According to the intelligent control compound switch, the unqualified voltage of the single-phase circuit of the original branch is adjusted and improved.